Ahmedabad-based darling muesco [india] pvt ltd offers self-acting, pilot and piston operated pressure-reducing valves that are most popular for pressure reduction of steam in all types of industries. The valve operates on spring balance principal. The downstream pressure is sensed below the diaphragm, which is balanced by the spring tension. Increasing spring tension expands outlet pressure and vice versa. These valves are available in sizes ranging from 15 to 150 nb with weight range 14 to 140 kgs approximately. Key features of pressure reducing valve are as follows; special quality stainless steel diaphragm maintains constant outlet pressure, irrespective of change in upstream pressure [low drop] high turn down ratio full to 10 percent [10:1] ideal for low and medium pressure, steam, gas and air variety of spring range for better down stream pressure control.
